Strap fastening



J. M. FAILEY.

STRAP FASTENING.

APPLICATION FILED SEPT- ao, 1919.

1,408,281, Patented Feb. 28, 1922.

UNITED STATES PATENT OFFICE.

JOEN M. FAILEY, OF AKRON, OHIO, ASSIGNOR TO THE B. F. GOODRIOH COMPANY, 0]? NEW YORK, N'. Y., A CORPORATION OF NEW YORK.

STRAP FASTENING.

Specification of Letters Patent. Patented Feb, 28, 1922,

Application filed September 30, 1919. Serial No. 327,499.

To all to hem it may concern:

Be it known that I, JOHN M. FAILEY, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Strap Fastening, of which the following is a specification.

i y invention relates to strap and buckle fastenings wherein a strap end runs through a buckle having a suitable gripping member.

My object is to provide such a construction of the strap that the buckle will securely engage the same without slipping and may easily be released when desired.

Of the accompanying drawings- Fig. 1 is a perspective view of an apparel belt embodying my invention and having an automatic buckle for connecting the ends.

Fig. 2 is a longitudinal sectional view through a portion of the apparel belt or other strap fastening, showing the buckle and the strap or belt ends.

In the drawings, the tongue end 10 of a belt 11 is connected with the other belt end 12 by an automatic buckle 13 which is shown as having a cylindrical belt-clamping bar 14 freely movable in a pair of cam slots 15 diagonally toward and from the inner surface 16 of the belt, whereby, when the bar is moved against the belt, the tension of the latter causes the bar to be wedged thereagainst.

In Fig. 2 I have shown a preferred construction in which the belt is formed of a plurality of layers or laminations, herein three, designated by the numerals 18, 19 and 20, the inner and outer layers 18 and 20 consisting preferably of a vulcanized compound of rubber and unorganized cotton'fibres, such as is commonly used as a leather substitute, while the intermediate layer 19 (located nearer to the inner than to the outer surface of the belt, as shown) consists of a strip of straight-laid rubberized fabric vulcanized to the two adjacent layers.

To prevent slippage of the buckle bar 1d, the inner surface of the belt is permanently roughed, as by molding transverse corrugations 17 therein, beginning in the case of the apparel belt at a point adjacent the extremity of the tongue end and extending longitudinally of said tongue end for several inches to allow for any adjustment of the buckle relative to the strap end. These corrugations are relatively shallow and closely spaced, so that the buckle bar will not become wedged into a recess of the corrugated surface, the bar preferably engaging and slightly compressing two or more of the projections of the corrugated surface and being held against these projections by the wedging action of the bar in the cam slots. While the corrugations prevent slipping of the bar and a resultant loosening of the belt, the bar may easily be released by pulling back simultaneously on its two projecting ends, or by first drawing on the tongue end of the belt whileholding the buckle, as in tightening the belt, which will release the clamping. bar and allow it to be retracted. Corrugations formed on the inner surface of this form of belt will not be worn smooth or pressed down as soon as corrugations formed on a leather or other belt, for the admixture of the cotton or other fibre in the rubber increases its toughness and resistance to compression without materially reducing the tendency of the rubber to resume its normal shape after the pressure thereon, such as caused by the bar, is released. The remainder of the inner surface of the belt is smooth, permitting a sliding of the belt on a garment when adjusting its position on the latter.

I claim:

1. In an apparel belt, the combination of a strap having a smooth surface extending around its inner circumference to the belt tongue, permitting a sliding of the belt on a garment, and having a tongue end permanently formed with a roughened inner surface, and a buckle having a clamping member adapted to engage and compress said roughened surface.

2. In an apparel belt, the combination of a rubber composition strap having a substantially smooth inner surface from itsbuc kle end to its tongue end and having slightlyresilient transverse corrugations permanently formed on the inner surface of the tongue end, and a buckle having a gripping member adapted to compress the corruga of the belt having a diagonally-movable, tions on the tongue end When the belt is unrotatable gripping bar adapted to Wedge 10 der tension. against a plurality of the tranverse ridges 3. An apparel belt comprising a rubber of the corrugated surface of the strap. composition strap having an inner surface In testimony whereof I have hereunto set permanently formed with slightly compresmy hand this 24th day of September, 1919. sibleprojections adjacent the tongue end of I the belt, and a buckle on the opposite end JOHN M. FAILEY. 

